hisi3520dv400 音频输出，立体声模式，可以输出声音 但是声音左右声道都在一起了

本帖最后由 qn1586314774 于 2020-6-4 20:44 编辑

使用mpp/sample/audio中提供的demo

修改地方
    stAioAttr.enSoundmode    = AUDIO_SOUND_MODE_STEREO;//AUDIO_SOUND_MODE_MONO
    stAioAttr.u32ChnCnt      = 2;//1


音频芯片：TLV320AIC3104

测试：制作的音频区分左右声道，使用这个例子播放音频，不知为什么，左右声道不区分？

源代码如下：
/[code]******************************************************************************
* function : file -> Adec -> Ao
******************************************************************************/
HI_S32 SAMPLE_AUDIO_AdecAo(HI_VOID)
{
    HI_S32      s32Ret;
    AUDIO_DEV   AoDev = SAMPLE_AUDIO_AO_DEV;
    AO_CHN      AoChn = 0;
    ADEC_CHN    AdChn = 0;
    FILE        *pfd = NULL;
    HI_U32      AoChnCnt = 0;
    AIO_ATTR_S stAioAttr;

    stAioAttr.enSamplerate   = AUDIO_SAMPLE_RATE_48000;//AUDIO_SAMPLE_RATE_44100
    stAioAttr.enBitwidth     = AUDIO_BIT_WIDTH_16;
    stAioAttr.enWorkmode     = AIO_MODE_I2S_MASTER;
    stAioAttr.enSoundmode    = AUDIO_SOUND_MODE_STEREO;//  AUDIO_SOUND_MODE_STEREO
    stAioAttr.u32EXFlag      = 1;
    stAioAttr.u32FrmNum      = 30;
    stAioAttr.u32PtNumPerFrm = SAMPLE_AUDIO_PTNUMPERFRM;
    stAioAttr.u32ChnCnt      = 2;//1
    stAioAttr.u32ClkChnCnt   = 2;
    stAioAttr.u32ClkSel      = 0;

    if(PT_AAC == gs_enPayloadType)
    {
        //stAioAttr.u32PtNumPerFrm = AACLC_SAMPLES_PER_FRAME;
    }

#ifdef HI_ACODEC_TYPE_TLV320AIC31
        stAioAttr.u32ClkSel      = 1;
#endif

    gs_pstAiReSmpAttr = NULL;
    gs_pstAoReSmpAttr = NULL;

    s32Ret = SAMPLE_COMM_AUDIO_CfgAcodec(&stAioAttr);
    if (HI_SUCCESS != s32Ret)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }


    AoChnCnt = stAioAttr.u32ChnCnt >> stAioAttr.enSoundmode;
        g_u32AoCnt = AoChnCnt;
        g_u32AoDev = AoDev;

    enInSampleRate  = AUDIO_SAMPLE_RATE_BUTT;
    enOutSampleRate = AUDIO_SAMPLE_RATE_BUTT;
    //s32Ret = SAMPLE_COMM_AUDIO_StartAo(AoDev, AoChnCnt, &stAioAttr, AUDIO_SAMPLE_RATE_BUTT, HI_FALSE, HI_NULL, 0);
    s32Ret = SAMPLE_COMM_AUDIO_StartAo(AoDev, AoChnCnt, &stAioAttr, enInSampleRate, enOutSampleRate, HI_NULL, 0);
        if (s32Ret != HI_SUCCESS)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }
        //打开音频原始文件，读取写入
        g_u32Adec = AdChn;
    s32Ret = SAMPLE_COMM_AUDIO_StartAdec(AdChn, gs_enPayloadType);
    if (s32Ret != HI_SUCCESS)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }


    s32Ret = SAMPLE_COMM_AUDIO_AoBindAdec(AoDev, AoChn, AdChn);
    if (s32Ret != HI_SUCCESS)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }


    pfd = SAMPLE_AUDIO_OpenAdecFile(AdChn, gs_enPayloadType);
    if (!pfd)
    {
        SAMPLE_DBG(HI_FAILURE);
        return HI_FAILURE;
    }
    s32Ret = SAMPLE_COMM_AUDIO_CreatTrdFileAdec(AdChn, pfd);
    if (s32Ret != HI_SUCCESS)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }       
       
    printf("bind adec:%d to ao(%d,%d) ok \n", AdChn, AoDev, AoChn);

    printf("\nplease press twice ENTER to exit this sample\n");
    getchar();
    getchar();

    s32Ret = SAMPLE_COMM_AUDIO_DestoryTrdFileAdec(AdChn);
    if (s32Ret != HI_SUCCESS)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }


    s32Ret = SAMPLE_COMM_AUDIO_StopAdec(AdChn);
    if (s32Ret != HI_SUCCESS)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }

        s32Ret = SAMPLE_COMM_AUDIO_StopAo(AoDev, AoChnCnt, gs_bAioReSample, HI_FALSE);
    if (s32Ret != HI_SUCCESS)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }

    s32Ret = SAMPLE_COMM_AUDIO_AoUnbindAdec(AoDev, AoChn, AdChn);
    if (s32Ret != HI_SUCCESS)
    {
        SAMPLE_DBG(s32Ret);
        return HI_FAILURE;
    }

    return HI_SUCCESS;
}
[/code]